DIFFERENT VEHICLE SPEEDS AND CONGESTION COSTS

A model is developed for the quantification of delay costs and of the change in vehicle operating costs caused by a traffic of slow vehicles to a traffic of fast ones on one lane of a two lane road. The stochastic nature of vehicle entries is taken into account, and the quantification is general, covering traffics of all probability distributions. The model covers conditions in which overtaking is not possible. The model is applied to Poisson traffic and the implications of the resulting costs are considered. The sensitivity of these congestion costs is considered for different combinations of the relevant variables, and the marginal congestion costs are derived for different conditions. Congestion prices, estimated on a speed-flow basis, are compared with equivalent prices estimated on the basis of this model. The implications of the approach adopted are examined for traffic flow theory and the calculation of congestion costs. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/856156
• Corporate Authors:

  London School of Economics and Political Science

  Houghton Street, Aldwych
  London WC2A 2AE,   England 
• Authors:
  • Tzedakis, A
• Publication Date: 1980-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 81-103
• Serial:
  • Journal of Transport Economics and Policy
  • Volume: 14
  • Issue Number: 1
  • Publisher: University of Bath
  • ISSN: 0022-5258
  • Serial URL: http://www.jtep.com

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Costs; Intersection elements; Mathematical models; Motor vehicles; Operating costs; Poisson distributions; Poisson ratio; Speed; Traffic congestion; Traffic delays; Traffic flow; Traffic flow theory; Traffic speed; Vehicles
• Uncontrolled Terms: Entrances
• Old TRIS Terms: Poissons ratio
• ITRD Terms: 632: Congestion (traffic); 224: Cost; 226: Cost benefit analysis; 9010: Delay; 6572: Distribution (stat); 426: Entrance; 6473: Mathematical model; 221: Operating costs; 5408: Speed; 671: Traffic flow; 1255: Vehicle
• Subject Areas: Finance; Highways; Operations and Traffic Management; Vehicles and Equipment; I10: Economics and Administration; I71: Traffic Theory;

Filing Info

• Accession Number: 00314735
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Oct 27 1980 12:00AM